CONFIGURATION: CONICAL, PLANE-PARALLEL
MAJOR DIAMETER: 0.200″+/-.001″ (AFTER BEVEL)
MINOR DIAMTER: 0.1186″ REFERENCE
CONICAL ANGLE: 20 DEGREES NOMINAL
THICKNESS: 0.126″+/-.001″
PARALLELISM: 1 ARC MINUTE MAXIMUM.
SURFACE ACCURACY: 1/4 FRINGE MAXIMUM, 2 FACES.
SURFACE QUALITY: 20-10 PER MIL-O-13830, 2 FACES.
MATERIAL TYPE/QUALITY: SAPPHIRE, OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: (0001).
COATING: NONE, NOT REQUIRED.